凉辰梦瑾空人心空城旧忆故人离
[liáng chén mèng jĭn kōng rén xīn kōng chéng jiù yì gù rén lí]
The phrase suggests an evocative scenario blending feelings ('cool moment dream jade empties hearts emptied city old memories friends leave'). It paints a poignant picture of nostalgia for departed times and people within an otherwise lonely setting.